CN111537091A - Temperature sensing device and using method thereof - Google Patents
Temperature sensing device and using method thereof Download PDFInfo
- Publication number
- CN111537091A CN111537091A CN202010404459.3A CN202010404459A CN111537091A CN 111537091 A CN111537091 A CN 111537091A CN 202010404459 A CN202010404459 A CN 202010404459A CN 111537091 A CN111537091 A CN 111537091A
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- China
- Prior art keywords
- illumination
- temperature
- sensing device
- zoom lens
- temperature sensing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/18—Measuring temperature based on the expansion or contraction of a material the material being a liquid with electric conversion means for final indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/04—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/04—Details
- G01K5/10—Containers for the liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/04—Details
- G01K5/12—Selection of liquid compositions
Abstract
The invention discloses a temperature sensing device, which comprises a light source; a zoom lens capable of deforming according to a change in temperature to change a focal length of the zoom lens; a light screen; and an illumination sensor fixed on the light screen; the zoom lens can refract light beams emitted by the light source on the light screen to form an illumination area; the illumination sensor can collect information of illumination at one point in an illumination area and convert the illumination information into corresponding electric signals. Further, the control software can accurately calculate the real-time temperature in the environment to be measured according to the illumination information.
Description
Technical Field
The invention relates to the technical field of temperature measurement, in particular to a temperature sensing device and a using method thereof.
Background
Thermometers play a very important role as elements for measuring temperature in many fields. In the prior art, thermometers are roughly classified into pressure thermometers, bimetallic thermometers, thermal resistance thermometers and the like; according to the characteristics of the thermometers, the thermometers have the defects of small measuring range, long lag time, low measuring precision, large thermal inertia, short service life and the like. Therefore, a new temperature sensing device is needed to deal with the above problems.
Disclosure of Invention
Aiming at the defects in the technology, the invention provides a temperature sensing device and a using method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a temperature sensing device, comprising: a light source; a zoom lens capable of deforming according to a change in temperature to change a focal length of the zoom lens; a light screen; and an illumination sensor fixed on the light screen; the zoom lens can refract light beams emitted by the light source on the light screen to form an illumination area; the illumination sensor can collect information of illumination at one point in an illumination area and convert the illumination information into corresponding electric signals.
Preferably, the temperature sensing device further comprises control software, which can calculate the area of the illuminated area based on the electrical signal sent by the illumination sensor, and calculate the focal length of the zoom lens at that time, thereby calculating the real-time temperature in the environment to be measured.
Preferably, the illumination sensor is disposed at a central position of the illumination area.
Preferably, the zoom lens includes a lens housing and a transparent liquid enclosed in the lens housing; wherein, the transparent liquid can change volume according to temperature change, so that the shape of the zoom lens is changed, and the illumination area can be changed.
Preferably, the transparent liquid is kerosene or alcohol.
Preferably, the temperature sensing device has a minimum temperature detection value and a maximum temperature detection value; a minimum temperature value focus and a maximum temperature value focus are formed on the side part of the zoom lens; the optical screen is configured on the same side of the minimum temperature value focus and the maximum temperature value focus so as to avoid temperature measurement errors.
Preferably, the temperature sensing device further comprises a fixing frame, and a first supporting arm for fixing the light source, a second supporting arm for fixing the zoom lens, and a third supporting arm for fixing the light screen are sequentially arranged on the fixing frame.
Preferably, the temperature sensing device further comprises a housing; an inner cavity for accommodating the light source, the zoom lens, the light screen and the illumination sensor is formed in the shell.
Preferably, a display is arranged on the shell and used for showing the real-time temperature in the environment to be measured, which is calculated by the control software.
The other technical scheme adopted by the invention for solving the technical problem is as follows:
a method of using a temperature sensing device, comprising the steps of:
s1: stably placing the temperature sensing device in an environment to be measured;
s2: emitting a light beam with an angle to the zoom lens through the light source, and refracting the light beam on the light screen by the zoom lens to form an illumination area;
s3: the illumination sensor acquires illumination information of one point in the illumination area and converts the illumination information into a corresponding electric signal;
s4: the control software receives the electric signal sent by the illumination sensor, calculates the area of an illumination area according to the electric signal, calculates the focal length of the zoom lens at the moment, and further calculates the real-time temperature in the environment to be measured.
Compared with the prior art, the invention has the beneficial effects that: according to the temperature sensing device provided by the invention, the focal length of the zoom lens arranged in the temperature sensing device can be changed along with the temperature change, so that light beams emitted by a light source can display an illumination area with a corresponding area on a light screen; the illumination of one point in the illumination area is collected through the illumination sensor, and the control software can accurately calculate the real-time temperature in the environment to be measured according to the illumination information. This application simple structure, temperature measurement range are wide and long service life, and it has positive meaning in the temperature measurement field as a neotype temperature measurement mode.
Drawings
FIG. 1 is an isometric view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a minimum temperature value focal point and a maximum temperature value focal point located on the same side of a light screen;
FIG. 3 is a schematic diagram of a minimum temperature value focus and a maximum temperature value focus located on the other side of the optical screen;
fig. 4 is a schematic structural view of the housing of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
As shown in fig. 1 to 4, the present invention provides a temperature sensing apparatus comprising:
a light source 1;
a zoom lens 2 capable of deforming according to a change in temperature to change a focal length of the zoom lens 2;
a light screen 3; and
an illumination sensor 4 fixed on the light screen 3;
the zoom lens 2 is arranged between the light source 1 and the light screen 3, and can refract the light beam emitted by the light source 1 on the light screen 3 to form an illumination area 10; the illumination sensor 4 can collect information on illumination at one point in the illumination area 10 and convert the illumination information into a corresponding electrical signal.
In one embodiment of the present invention, the illumination sensor 4 is preferably disposed at the center of the illumination area 10 in consideration of uneven illuminance at each point in the illumination area 10.
As an embodiment of the present invention, the zoom lens 2 includes a lens housing (not shown in the figure) and a transparent liquid (such as kerosene, alcohol, methanol, etc.) sealed in the lens housing;
the transparent liquid can change volume according to temperature change, so that the shape of the zoom lens 2 changes, and the illumination area 10 can be changed.
In an embodiment of the present invention, the lens housing is made of transparent materials such as plastic, glass, and crystal; because the glass imaging effect is better, and manufacturing cost is lower, the glass is preferably used as the manufacturing material.
As an embodiment of the present invention, the volume of the transparent liquid increases with increasing temperature and decreases with decreasing temperature;
specifically, the temperature sensing device has a minimum temperature detection value (such as-300 ℃, 150 ℃, 0 ℃ and the like) and a maximum temperature detection value (such as 5 ℃, 600 ℃, 1000 ℃ and the like);
correspondingly, the side part of the zoom lens 2 is formed with a minimum temperature value focus 22 and a maximum temperature value focus 21;
the optical screen 3 is disposed on the same side of the minimum temperature focus 22 and the maximum temperature focus 21, so as to avoid two identical illumination regions 10 between the minimum temperature detection value and the maximum temperature detection value, which may cause temperature measurement errors.
As an embodiment of the present invention, the temperature sensing device further includes a fixing frame 5, on which a first arm 51 for fixing the light source 1, a second arm 52 for fixing the zoom lens 2, and a third arm 53 for fixing the light screen 3 are sequentially disposed.
As an embodiment of the present invention, the temperature sensing device further includes control software (not shown in the figure), which can calculate the area of the illumination area 10 based on the electrical signal sent by the illumination sensor 4, and calculate the focal length of the zoom lens 2 at this time, so as to calculate the real-time temperature in the environment to be measured.
As an embodiment of the present invention, the temperature sensing device further includes a housing 6;
an inner cavity 60 for accommodating the light source 1, the zoom lens 2, the light screen 3 and the illumination sensor 4 is formed in the housing 6.
As an embodiment of the present invention, the housing 6 is made of materials with good thermal conductivity, such as graphene and silver, and the inner cavity 60 is configured in a vacuum state, so as to avoid affecting the measurement accuracy of the ambient temperature.
As an embodiment of the present invention, a display 7 is configured on the housing 6, and is used for showing the real-time temperature in the environment to be measured, which is calculated by the control software.
The invention also provides a use method of the temperature sensing device, which comprises the following steps:
s1: stably placing the temperature sensing device in an environment to be measured;
s2: emitting a light beam with an angle to the zoom lens 2 through the light source 1, wherein the zoom lens 2 refracts the light beam on the light screen 3 and forms the illumination area 10;
s3: the illumination sensor 4 collects illumination information of one point in the illumination area 10 and converts the illumination information into a corresponding electric signal;
s4: the control software receives the electric signal sent by the illumination sensor 4, calculates the area of the illumination area 10 according to the electric signal, calculates the focal length of the zoom lens 2 at the moment, and further calculates the real-time temperature in the environment to be measured.
In summary, since the transparent liquid is sensitive to temperature change, it can expand with heat and contract with cold when the temperature changes (i.e. the transparent liquid can feel the ambient temperature and has a volume corresponding to the ambient temperature). Understandably, at a specific ambient temperature, the volume of the transparent liquid is certain (namely, the shape of the zoom lens 2 is certain), the focal length of the zoom lens 2 is certain, and the area of an illumination area of a light beam on the light screen is certain; since the total illuminance of the light beam is a constant value, the larger the area forming the illuminated area is, the smaller the illuminance at each point in the illuminated area will be. In view of this, the control software can accurately calculate the real-time temperature in the environment to be measured based on the electrical signal sent by the illumination sensor 4.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A temperature sensing device, comprising:
a light source (1);
a zoom lens (2) that can deform in accordance with a change in temperature to change the focal length of the zoom lens (2);
a light screen (3); and
an illumination sensor (4) fixed on the light screen (3);
wherein the zoom lens (2) can refract the light beam emitted by the light source (1) on the light screen (3) to form an illumination area (10); the illumination sensor (4) can collect information of illumination at one point in the illumination area (10) and convert the illumination information into a corresponding electrical signal.
2. The temperature sensing device according to claim 1, further comprising control software capable of calculating the area of the illumination area (10) based on the electrical signal from the illumination sensor (4), calculating the focal length of the zoom lens (2) at that time, and further calculating the real-time temperature in the environment to be measured.
3. The temperature sensing device according to claim 2, wherein the illumination sensor (4) is arranged in a central position of the illumination area (10).
4. The temperature sensing device according to claim 2, wherein the variable focus lens (2) comprises a lens housing and a transparent liquid enclosed in the lens housing;
wherein the transparent liquid can change volume according to temperature change, so that the shape of the zoom lens (2) is changed, and the illumination area (10) can be changed.
5. The temperature sensing device of claim 4, wherein the transparent liquid is kerosene or alcohol.
6. The temperature sensing device of claim 2, wherein the temperature sensing device has a minimum temperature detection value and a maximum temperature detection value; a minimum temperature value focus and a maximum temperature value focus are formed on the side part of the zoom lens (2);
wherein the optical screen (3) is configured on the same side of the minimum temperature value focus and the maximum temperature value focus so as to avoid temperature measurement errors.
7. A temperature sensing device according to claim 2, further comprising a fixing frame (5) on which a first arm (51) for fixing the light source (1), a second arm (52) for fixing the zoom lens (2), and a third arm (53) for fixing the light screen (3) are arranged in sequence.
8. The temperature sensing device according to claim 2, further comprising a housing (6);
an inner cavity (60) for accommodating the light source (1), the zoom lens (2), the light screen (3) and the illumination sensor (4) is formed in the housing (6).
9. The temperature sensing device according to claim 8, characterized in that a display (7) is arranged on the housing (6) for showing the real-time temperature in the environment to be measured calculated by the control software.
10. Use of a temperature sensing device according to any of claims 2-9, comprising the steps of:
s1: stably placing the temperature sensing device in an environment to be measured;
s2: emitting a light beam with an angle to the zoom lens (2) through the light source (1), wherein the zoom lens (2) refracts the light beam on the light screen (3) and forms the illumination area (10);
s3: the illumination sensor (4) collects illumination information of one point in the illumination area (10) and converts the illumination information into a corresponding electric signal;
s4: the control software receives the electric signal sent by the illumination sensor (4), calculates the area of the illumination area (10) according to the electric signal, calculates the focal length of the zoom lens (2) at the moment, and further calculates the real-time temperature in the environment to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010404459.3A CN111537091A (en) | 2020-05-13 | 2020-05-13 | Temperature sensing device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010404459.3A CN111537091A (en) | 2020-05-13 | 2020-05-13 | Temperature sensing device and using method thereof |
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| Publication Number | Publication Date |
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| CN111537091A true CN111537091A (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010404459.3A Pending CN111537091A (en) | 2020-05-13 | 2020-05-13 | Temperature sensing device and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363255A (en) * | 2020-12-29 | 2021-02-12 | 信利(仁寿)高端显示科技有限公司 | But fly's eye lens and exposure system of automatically regulated illuminance homogeneity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090052000A1 (en) * | 2007-08-17 | 2009-02-26 | Shinko Electric Industries Co., Ltd. | Image forming device |
| CN106840410A (en) * | 2017-01-23 | 2017-06-13 | 京东方科技集团股份有限公司 | A kind of temperature sensor and its temperature checking method |
| CN108603951A (en) * | 2016-01-04 | 2018-09-28 | 奥普托图尼康苏默尔股份公司 | The optical system of imaging sensor including bending |
| JP2018194730A (en) * | 2017-05-19 | 2018-12-06 | キヤノン株式会社 | Zoom lens and imaging apparatus having the same |
-
2020
- 2020-05-13 CN CN202010404459.3A patent/CN111537091A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090052000A1 (en) * | 2007-08-17 | 2009-02-26 | Shinko Electric Industries Co., Ltd. | Image forming device |
| CN108603951A (en) * | 2016-01-04 | 2018-09-28 | 奥普托图尼康苏默尔股份公司 | The optical system of imaging sensor including bending |
| CN106840410A (en) * | 2017-01-23 | 2017-06-13 | 京东方科技集团股份有限公司 | A kind of temperature sensor and its temperature checking method |
| JP2018194730A (en) * | 2017-05-19 | 2018-12-06 | キヤノン株式会社 | Zoom lens and imaging apparatus having the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363255A (en) * | 2020-12-29 | 2021-02-12 | 信利(仁寿)高端显示科技有限公司 | But fly's eye lens and exposure system of automatically regulated illuminance homogeneity |
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Application publication date: 20200814 |